Syntax
pskill [- ] [-t] [\\computer [-u user] [-p passwd]] process_name | process_id
Options:
computer The computer on which the process is running. Default=local system
-p passwd Specify a password for user (optional). Passed as clear text.
If omitted, you will be prompted to enter a hidden password.
-u user Specify a user name for login to remote computer(optional).
-t Kill the process and its descendants.
process_id/name
The process or processes to be killed.
-accepteula Suppress the display of the license dialog.
- Help, display the supported options.

To kill a process on a remote system requires administrative privileges on the remote system.

When launched for the first time, PsKill will create the regkey HKCU\Software\Sysinternals\PsKill\EulaAccepted=0x01

Examples:

Kill all instances of notepad.exe running on \\workstation64:

pskill \\workstation64 notepad

“Never trust a man who, when left alone with a tea cosy, doesn't try it on” ~ Billy Connolly

Related:

SysInternals ForumTSKILL - Kill process on a Terminal Server.TASKKILL - End a running process.ProcDump - Monitor an application for CPU spikes.PsList - List detailed information about processes.
The process button of Task Manager in Windows will also identify the process ID (PID.)PsSuspend - Suspend processes (so they can be continued at a later point in time.)
Powershell: Stop-Process - Stop a running process. (kill)
Equivalent bash command (Linux): kill - Stop a process from running.